CN103040535A - Three-dimensional orthodontic force detecting device - Google Patents
Three-dimensional orthodontic force detecting device Download PDFInfo
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- CN103040535A CN103040535A CN2012105522831A CN201210552283A CN103040535A CN 103040535 A CN103040535 A CN 103040535A CN 2012105522831 A CN2012105522831 A CN 2012105522831A CN 201210552283 A CN201210552283 A CN 201210552283A CN 103040535 A CN103040535 A CN 103040535A
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Abstract
A three-dimensional orthodontic force detecting device comprises a force sensor, a measuring rod and a fixing rod, wherein one end of the measuring rod is fixedly connected with a tooth model to be detected; the other end of the measuring rod is connected with the upper end of the fixing rod; the lower end of the fixing rod is connected with the force sensor; the force sensor is mounted on a force sensor sliding seat; the force sensor sliding seat is connected with a guide rail mechanism which is used for driving the force sensor to move away from or towards the force sensor sliding seat and move along a circular arc with the circle center of the tooth model as circle center; and the guide rail is fixed on a base. The invention provides the three-dimensional orthodontic force detecting device which is used for direct measurement, is conveniently applied to clinics and corrects an orthodontic scheme in time.
Description
Technical field
The present invention relates to the orthodontic force checkout gear of a kind of oral cavity fixed appliance.
Background technology
The oral cavity Fixed Orthodontics is for tooth arrangement deformity or grinds one's teeth and close that (tooth is combined into a word, together lower), utilize the apparatus of rescuing of the compositions such as arch wire, bracket, tooth is applied machinery rescue force and moment, adjust face skeleton, tooth and the triangular balance and coordination of jaw facial muscle meat, after rescuing after a while, improve face type, aligning and improve masticatory efficiency.
In just abnormal, no matter edgewise appliance or straight wire appliance all are that the distortion by arch wire is implemented in sustained load on the tooth, realize the movement of tooth.Therefore appliance offers the three-dimensional orthodontic force of tooth and moving process and the amount of movement that moment will determine tooth, will realize in the orthodontic treatment process that the accurate on demand movement of tooth must know clearly first the force and moment that abnormal correction system provides.Exactly because many undesirable Tooth Movements are to the understanding of orthodontic force and control unintelligible causing.Incorrect force and moment can cause Tooth Movement excessive or not enough, need to adjust arch wire with reinforcing or subtract power this moment according to practical situation, will greatly prolong the time of rescuing like this, may cause the absorption of periodontal tissue simultaneously, increase the risk of rescuing failure, larger uncertainty occurs.
The problem that the at present measurement of orthodontic force exists: the at present domestic report that detects about orthodontic force is a kind of to be as the convert power of appliance of load-sensing unit with four springs, this method needs complicated the conversion, and can't obtain the suffered moment values of tooth, also can't carry out simultaneously polydonita and measure.Also having a kind of is to use based on the measuring device of force transducer to measure, claim and directly can be used for mouthful interior a measurement, but since need to bracket with and tooth between insert to plug pad, impossible realize in clinical practice uses, because existing orthodontic therapy apparatus all is to be dimensioned to standard-sized element according to human oral cavity, do not allow to insert unnecessary auxiliary, otherwise can affect patient and put on comfortableness and therapeutic effect behind the apparatus, and can greatly increase clinician's workload, can't obtain real enforcement; The Mechanical Data that what is more important is measured is to have worn the data behind the appliance, can't be used for the design of the front orthodontic treatment scheme of clinical implementation, even the Mechanical Data of measuring is dissatisfied, also can't aligns abnormal therapeutic scheme and carry out basic modification.
Summary of the invention
Complicated for the conversion of the metering system that overcomes existing orthodontic force, can't be applied to clinical, as can not to revise just abnormal scheme deficiency, the invention provides a kind of direct measurement, be convenient to be applied to clinical, and in time revise the three-dimensional orthodontic force checkout gear of just abnormal scheme.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of three-dimensional orthodontic force checkout gear, comprise force transducer, measuring stick and fixed bar, one end of described measuring stick is fixedly connected with tooth mould to be detected, the other end of described measuring stick is connected with the upper end of fixed bar, the lower end of described fixed bar is connected with described force transducer, described force transducer is installed on the force transducer sliding seat, described force transducer sliding seat with in order to the drive sensor away from or the guide rail mechanism that moves near circular arc mobile and take tooth mould center as the center of circle on, described guide rail mechanism is fixed on the base.
Further, described guide rail mechanism is arc-shaped guide rail, and described arc-shaped guide rail is take described tooth mould center as the center of circle.
Further again, described arc-shaped guide rail, line slideway are connected with base by hold-down screw, and described base is provided with the adjustment hole of installing for hold-down screw.
The lower end of described fixed bar is installed in rotation on the described force transducer.
The first notch is opened in the upper end of described fixed bar, and the other end of described measuring stick has the second notch, and set bolt passes respectively described the first notch and the second notch.
Described the second notch is straight trough, and described set bolt is sleeved in the second notch slidably.
Beneficial effect of the present invention is mainly manifested in: simplify to convert, be convenient to be applied to clinical, and in time revise just abnormal scheme.
Description of drawings
Fig. 1 is the sketch map of three-dimensional orthodontic force checkout gear.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the A-A sketch map of Fig. 2.
Fig. 4 is the sketch map of tooth mould.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
With reference to Fig. 1～Fig. 4, a kind of three-dimensional orthodontic force checkout gear, comprise force transducer 4, measuring stick 6 and fixed bar 5, one end of described measuring stick 6 is fixedly connected with tooth mould 8 to be detected, the other end of described measuring stick 6 is connected with the upper end of fixed bar 5, the lower end of described fixed bar 5 is connected with described force transducer 4, described force transducer 4 is installed on the force transducer sliding seat 3, described force transducer sliding seat 3 with in order to the drive sensor away from or the guide rail mechanism 2 that moves near circular arc mobile and take tooth mould center as the center of circle on, described guide rail mechanism 2 is fixed on the base 1, and is fixing by three set bolts 10.
Further, described guide rail mechanism 2 is arc-shaped guide rail, and described arc-shaped guide rail is take described tooth mould center as the center of circle.
Further again, described arc-shaped guide rail, line slideway are connected with base 1 by hold-down screw, and described base 1 is provided with the adjustment hole of installing for hold-down screw.
The lower end of described fixed bar 5 is installed in rotation on the described force transducer 4.
The first notch is opened in the upper end of described fixed bar 5, and the other end of described measuring stick 6 has the second notch, and set bolt passes respectively described the first notch and the second notch.
Described the second notch is straight trough, and described set bolt is sleeved in the second notch slidably.
In the present embodiment, dope the orthodontic therapy force and moment that orthodontic appliance offers three directions of patient's tooth, need to be according to patient's self oral cavity data, the design therapeutic scheme, and make the model of this scheme, measure at model and to rescue really force and moment, then under the support of some assisting navigation instruments, this scheme is transferred on patient's the tooth.Therefore, the accurate orthodontic treatment of Extraordinary needs the support of special orthodontic force checkout gear.
Be connected with fixed bar 5 on the force transducer 4, fixed bar 5 can rotate to regulate taking measurement of an angle in the horizontal plane around axis own, and fixes with hold-down screw; Fixed bar 5 upper ends fluting is placed measuring stick 6, fix by the maintenance bolt, the interior end section of groove that measuring stick 6 is placed on fixed bar 5 has groove equally, can regulate the length that measuring stick 6 stretches out like this, can rotate around the maintenance bolt simultaneously, measuring stick is also scalable in the position of short transverse, and the other end of measuring stick 6 can be contacted with the tooth position that needs are measured easily.
In order to save measurement space, make the more tooth can be simultaneously measured, force transducer is selected the enough little microsensor of overall dimensions (such as the Nano17 of U.S. ATI company) as far as possible, its maximum, force that can measure is not less than 50N, maximum moment is not less than 0.5N.m, and measurement point is not less than 50 millimeters to the ultimate range of center sensor.Micro-force sensor provides matching interface and the interface function that is connected with computer, realizes that with computer programming computer interface is to demarcation, data show and the data preservation of sensor.
The designing and making that is used for the patient Ya Mo of orthodontic force measurement: making measurement tooth mould need to be according to patient's CT data, carry out three-dimensional reconstruction, obtain every tooth (comprising root of the tooth), skeleton and pericemental threedimensional model, periodontal membrane can enlarge outward certain distance by root surface and obtain as carrying out Boolean calculation with skeleton model after 0.25 millimeter.Tooth position for the needs measurement, in the computer three-dimensional model, need first itself and alveolar bone on every side to be carried out initial gross separation, parting surface connects by 1-2 cylinder, when actual measurement when the tooth that separates the tooth position and alveolar bone with by cutting tool connecting cylinder is cut off again after measuring stick is fixing after separate, as shown in Figure 4.Patient's dental model three-dimensional model can be shaped out by Connex 500 series disposables of 3 D stereo PRN device such as Israel Objet company, this kind equipment can use soft material and hard material to print the soft or hard composite model simultaneously, makes the composite model once-forming of tooth, periodontal membrane and alveolar bone.
Carry out the process that force and moment is measured with measurement device:
1. the tooth mould is fixed by bolts on the tooth mould base 7;
2. the dentist is according to patient CT data and Three-dimension Reconstruction Model design therapeutic scheme, and on the tooth mould bonding bracket and fixing arch wire;
3. micro-force sensor is adjusted to suitable position and fixing, made measuring stick and the tooth that needs measurement and alveolar bone contacts and be adhesively fixed with powerful viscose glue;
4. tooth and the connecting cylinder on the alveolar bone that will need to measure the tooth position cut off rear the separation, and arch wire power is loaded on the tooth;
With the measurement interface on the computer with force sensor caliberating, make the force and moment of measurement automatically be converted to tooth center;
6. survey measurements obtains power and moment on the tooth;
7. measurement result is used for regulating the just abnormal scheme on the tooth mould, and final scheme is transferred to clinically by the indirect bonding bracket.
Claims (6)
1. three-dimensional orthodontic force checkout gear, it is characterized in that: described checkout gear comprises force transducer, measuring stick and fixed bar, one end of described measuring stick is fixedly connected with tooth mould to be detected, the other end of described measuring stick is connected with the upper end of fixed bar, the lower end of described fixed bar is connected with described force transducer, described force transducer is installed on the force transducer sliding seat, described force transducer sliding seat with in order to the drive sensor away from or the guide rail mechanism that moves near circular arc mobile and take tooth mould center as the center of circle on, described guide rail mechanism is fixed on the base.
2. three-dimensional orthodontic force checkout gear as claimed in claim 1, it is characterized in that: described guide rail mechanism is arc-shaped guide rail, described arc-shaped guide rail is take described tooth mould center as the center of circle.
3. three-dimensional orthodontic force checkout gear as claimed in claim 2, it is characterized in that: described arc-shaped guide rail, line slideway are connected with base by hold-down screw, and described base is provided with the adjustment hole of installing for hold-down screw.
4. such as the described three-dimensional orthodontic force checkout gear of one of claim 1 ~ 3, it is characterized in that: the lower end of described fixed bar is installed in rotation on the described force transducer.
5. such as the described three-dimensional orthodontic force checkout gear of one of claim 1 ~ 3, it is characterized in that: the first notch is opened in the upper end of described fixed bar, and the other end of described measuring stick has the second notch, and set bolt passes respectively described the first notch and the second notch.
6. such as the described three-dimensional orthodontic force checkout gear of one of claim 1 ~ 3, it is characterized in that: described the second notch is straight trough, and described set bolt is sleeved in the second notch slidably.
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| CN201210552283.1A CN103040535B (en) | 2012-12-18 | 2012-12-18 | Three-dimensional orthodontic force detecting device |
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| CN201210552283.1A CN103040535B (en) | 2012-12-18 | 2012-12-18 | Three-dimensional orthodontic force detecting device |
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| CN103040535A true CN103040535A (en) | 2013-04-17 |
| CN103040535B CN103040535B (en) | 2015-01-28 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961188A (en) * | 2014-03-25 | 2014-08-06 | 浙江工业大学 | Three-dimensional orthodontic treatment force measuring equipment |
| CN104107094A (en) * | 2014-06-25 | 2014-10-22 | 福州大学 | Three-dimensional force measure system of non-trace rectification device as well as measure method |
| CN105078606A (en) * | 2014-05-07 | 2015-11-25 | 上海时代天使医疗器械有限公司 | Tooth received-force testing device and method |
| CN107550588A (en) * | 2017-10-12 | 2018-01-09 | 临安市口腔医院 | Tooth orthodontic correction power spring force measuring instrument and measuring method |
| WO2018035838A1 (en) * | 2016-08-26 | 2018-03-01 | 中国科学院深圳先进技术研究院 | Method and device for measuring oral orthodontic force |
| CN108066034A (en) * | 2016-11-10 | 2018-05-25 | 无锡时代天使医疗器械科技有限公司 | tooth stress measuring device and method |
| CN108968911A (en) * | 2017-05-31 | 2018-12-11 | 三纬国际立体列印科技股份有限公司 | Automatic oral cavity scanning machine |
| CN109692054A (en) * | 2017-10-23 | 2019-04-30 | 无锡时代天使医疗器械科技有限公司 | For connecting the connecting rod of tooth model and force snesor |
| CN110186606A (en) * | 2019-06-28 | 2019-08-30 | 陕西科技大学 | A kind of orthodontic force measuring device and measuring method of dental appliance |
| CN111458131A (en) * | 2020-05-08 | 2020-07-28 | 上海允泉新材料科技有限公司 | Method and device for detecting mechanical property of tooth socket |
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| CN102599984A (en) * | 2012-03-30 | 2012-07-25 | 兰州大学 | Orthodontic measuring device based on force and torque sensor |
| CN203089441U (en) * | 2012-12-18 | 2013-07-31 | 浙江工业大学 | Three-dimensional orthodontic force detection device |
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| US6120287A (en) * | 1999-08-06 | 2000-09-19 | Advanced Research And Technology Institute, Inc. | Apparatus and method for measuring orthodontic force applied by an orthodontic appliance |
| DE102006011787A1 (en) * | 2006-03-15 | 2007-09-20 | Rahnenführer, Claus | Jaw`s e.g. upper jaw, three-dimensional movement measuring device, has photosensitive sensor detecting contact area points on convex-curved and curved two-way measuring surfaces, provided on retainer and two-way retainer, respectively |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103961188A (en) * | 2014-03-25 | 2014-08-06 | 浙江工业大学 | Three-dimensional orthodontic treatment force measuring equipment |
| CN105078606A (en) * | 2014-05-07 | 2015-11-25 | 上海时代天使医疗器械有限公司 | Tooth received-force testing device and method |
| CN105078606B (en) * | 2014-05-07 | 2018-09-07 | 上海时代天使医疗器械有限公司 | Tooth forces testing device and method |
| CN104107094A (en) * | 2014-06-25 | 2014-10-22 | 福州大学 | Three-dimensional force measure system of non-trace rectification device as well as measure method |
| CN104107094B (en) * | 2014-06-25 | 2017-04-12 | 福州大学 | Three-dimensional force measure system of non-trace rectification device as well as measure method |
| WO2018035838A1 (en) * | 2016-08-26 | 2018-03-01 | 中国科学院深圳先进技术研究院 | Method and device for measuring oral orthodontic force |
| WO2018035985A1 (en) * | 2016-08-26 | 2018-03-01 | 中国科学院深圳先进技术研究院 | Method and device for oral orthodontic force measurement |
| CN108066034B (en) * | 2016-11-10 | 2021-07-27 | 无锡时代天使医疗器械科技有限公司 | Tooth stress measuring device and method |
| CN108066034A (en) * | 2016-11-10 | 2018-05-25 | 无锡时代天使医疗器械科技有限公司 | tooth stress measuring device and method |
| CN108968911A (en) * | 2017-05-31 | 2018-12-11 | 三纬国际立体列印科技股份有限公司 | Automatic oral cavity scanning machine |
| CN107550588A (en) * | 2017-10-12 | 2018-01-09 | 临安市口腔医院 | Tooth orthodontic correction power spring force measuring instrument and measuring method |
| CN107550588B (en) * | 2017-10-12 | 2019-09-17 | 临安市口腔医院 | Tooth orthodontic correction power spring force measuring instrument and measurement method |
| CN109692054B (en) * | 2017-10-23 | 2021-05-25 | 无锡时代天使医疗器械科技有限公司 | Connecting rod for connecting tooth model and force sensor |
| CN109692054A (en) * | 2017-10-23 | 2019-04-30 | 无锡时代天使医疗器械科技有限公司 | For connecting the connecting rod of tooth model and force snesor |
| CN110186606A (en) * | 2019-06-28 | 2019-08-30 | 陕西科技大学 | A kind of orthodontic force measuring device and measuring method of dental appliance |
| CN111458131A (en) * | 2020-05-08 | 2020-07-28 | 上海允泉新材料科技有限公司 | Method and device for detecting mechanical property of tooth socket |
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Effective date of registration: 20220128 Address after: 050000 room 829, Huashan business south gate, building 8, huaxiangman City, No. 88 Huaihe Road, high tech Zone, Shijiazhuang, Hebei Province Patentee after: Shengyuan (Hebei) medical industry Co.,Ltd. Address before: The city Zhaohui six districts Chao Wang Road Hangzhou City, Zhejiang province 310014 18 Patentee before: ZHEJIANG University OF TECHNOLOGY |
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